Restart, cleanup or retry inactve connections.

Instead of retrying all inactive connections, restart radio on very bad
errors, clean up those that are permanent failures and retry
the others.

Bug: 10131736
Change-Id: I2527b18d6cda52c55fb94be58fbb1a7a86818ef9
Signed-off-by: Wink Saville <wink@google.com>